<template>
  <view class="cart-container" v-if="cart.length !== 0">
    <!-- 收货地址组件 -->
    <my-address></my-address>
    
    <!-- 商品列表的标题区域 -->
    <view class="cart-title">
      <!-- 左侧图标 -->
      <uni-icons type="shop" size="18"></uni-icons>
      <!-- 右侧文本 -->
      <text cart-title-text>购物车</text>
    </view>
    
    <!-- 循环渲染购物车中的商品数据 -->
    
   <uni-swipe-action>
     <block v-for="(goods,index) in cart" :key="index">
       <uni-swipe-action-item :right-options="options" @click="swiperItmeClickHandler(goods)">
         <my-goods :goods="goods" :showRadio="true" :showNum="true" @radio-change="radioChangeHandler" @num-change="numberChangeHandler"></my-goods>
       </uni-swipe-action-item>
     </block>
   </uni-swipe-action>
    
    <!-- 使用自定义的结算组件 -->
    <my-settle></my-settle>
  </view>
  
  <!-- 空白购物车的区域 -->
  <view class="empty_cart" v-else>
    <image src="/static/cart_empty@2x.png" mode="" class="empty-img"></image>
    <text class="tip-text">空空如也~</text>
  </view>

</template>

<script>
  import badgeMix from '@/mixins/tabbar-badge.js'
  import { mapState,mapMutations } from 'vuex'

  export default {
    mixins:[badgeMix],
    computed: {
      ...mapState('m_cart',['cart'])
    },
    data() {
      return {
        options:[{
          text: '删除',
          style: {
              backgroundColor: '#C00000'
          }
        }]
      };
    },
    methods:{
      ...mapMutations('m_cart',['updateGoodsState','updateGoodsCount','removeGoodsById']),
      radioChangeHandler(e) {
        // console.log(e);
        // 更新购物车中商品的勾选状态
        this.updateGoodsState(e)
      },
      numberChangeHandler(e) {
        // console.log(e);
        // 更新商品的数量
        this.updateGoodsCount(e)
      },
      swiperItmeClickHandler(goods) {
        // console.log(goods);
        this.removeGoodsById(goods.goods_id);
        this.setBadge()
      }
      
    }
    
    
  }
</script>

<style lang="scss">
  .cart-container{
    padding-bottom: 50px ;
  }

.cart-title{
  height: 40px;
  display: flex;
  align-items: center;
  padding-left: 5px;
  border-bottom: 1px solid #EFEFEF;
  
  .cart-title-text{
    font-size: 14px;
  }
}

.empty_cart{
  display: flex;
  flex-direction: column;
  // justify-content: center;
  align-items: center;
  padding-top: 150px;
  
  .empty-img{
    width: 90px;
    height: 90px;
  }
  .tip-text{
    font-size: 12px;
    color:gray;
    margin-top: 15px;
  }
}

</style>
